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Infection and response
Organisation
Cell biology
Biological molecules
Homeostasis and response
Responding to change (a2 only)
Energy transfers (a2 only)
The control of gene expression (a-level only)
Substance exchange
Bioenergetics
Genetic information & variation
Inheritance, variation and evolution
Genetics & ecosystems (a2 only)
Ecology
Cells
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1f industrialisation and the people: britain, c1783-1885
1c the tudors: england, 1485-1603
Britain & the wider world: 1745 -1901
Inter-war germany
World war one
2n revolution and dictatorship: russia, 1917-1953
World war two & the holocaust
1l the quest for political stability: germany, 1871-1991
The cold war
2j america: a nation divided, c1845-1877
Medieval period: 1066 -1509
The fight for female suffrage
2m wars and welfare: britain in transition, 1906-1957
2d religious conflict and the church in england, c1529-c1570
Britain: 1509 -1745
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31/05/2023
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Structural → same molecular formulae, different structural formulae. Chain ㅅ Y 1 Geometric H₂C M² OH trans but-2-ene H3C H not used as often. C=C₁H on each c CH3 CC Sterioisomers → same structural formulae, but atoms arranged. differently in space. CH3 ОН H different position of functional group. V H3C position но он Coc N cis but-2-ene C = C H CH3 low CH3 OH E use E and 2 more must have different groups on each c Cahn-Ingold Prelog Nomenclature → when groups are different based on atomic number OH 8 на german 57. latin opposite = trans same cis C=C funchonal group. Å Ketone H Z-on ze CH3 opposite = E same = Z zame zide! aldehyde low high high q 6 -compare high and low for I and K - both high are on bottom, ze zame zide So it is a Z isomer 2 Optical eg. molecules with a chiral carbon. но-с 1-6-2 HH он н I C - H I H -U-I H H 4-C-C- C - C - H I H a 1 C HO A CH 3 H methyl, Cl, H, OH countas different carbon with 4 DIFFERENT groups attached to it methyl, ethyl, H, OH H₂C + C H OH isomers are mirror images of one another non-super imposable they interact differently with Ismell and taste
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